<template>
  <div>
    <el-form :inline="true" :model="cForm" :disabled="!isShowList ">
      <el-form-item label="一级分类">
        <el-select v-model="cForm.category1Id" placeholder="请选择" @change="handlerCategory1">
          <el-option
            :label="c1.name"
            :value="c1.id"
            v-for="c1 in category1List"
            :key="c1.id"
          ></el-option>
        </el-select>
      </el-form-item>

      <el-form-item label="二级分类">
        <el-select v-model="cForm.category2Id" placeholder="请选择" @change="handlerCategory2">
          <el-option
            :label="c2.name"
            :value="c2.id"
            v-for="c2 in category2List"
            :key="c2.id"
          ></el-option>
        </el-select>
      </el-form-item>


      <el-form-item label="三级分类">
        <el-select v-model="cForm.category3Id" placeholder="请选择" @change="handlerCategory3">
          <el-option
            :label="c3.name"
            :value="c3.id"
            v-for="c3 in category3List"
            :key="c3.id"
          ></el-option>
        </el-select>
      </el-form-item>

      <el-form-item>
        <el-button type="primary">查询</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  name: "CategorySelector",
  props:['isShowList'],
  data() {
    return {
      cForm: {
          category1Id:'',
          category2Id:'',
          category3Id:'',
      },
      category1List: [],
      category2List: [],
      category3List: [],
    };
  },
  mounted() {
    this.getCategory1List();
  },
  methods: {
    async getCategory1List() {
      try {
        const result = await this.$API.category.getCategory1();
        if (result.code === 200 || result.code === 200000) {
          this.category1List = result.data;
        }
      } catch (error) {
        this.$message.error("获取一级分类失败" + error.message);
      }
    },

    //  选中一级的时候回调,请求获取二级分类
    async handlerCategory1(category1Id){
        //  重新选择一级 清空二三级
        this.cForm.category2Id = ''
        this.cForm.category3Id = ''
        this.category2List = []
        this.category3List = []


        this.$emit('changeCategory',{categoryId:category1Id,level:1})

        try {
        const result = await this.$API.category.getCategory2(category1Id);
        if (result.code === 200 || result.code === 200000) {
          this.category2List = result.data;
        }
      } catch (error) {
        this.$message.error("获取二级分类失败" + error.message);
      }
    },

    async handlerCategory2(category2Id){
        // 重新选择二级  清空三级
        this.cForm.category3Id = ''
        this.category3List = []

        this.$emit('changeCategory',{categoryId:category2Id,level:2})
        try {
        const result = await this.$API.category.getCategory3(category2Id);
        if (result.code === 200 || result.code === 200000) {
          this.category3List = result.data;
        }
      } catch (error) {
        this.$message.error("获取三级分类失败" + error.message);
      }
    },

    handlerCategory3(category3Id){
        this.$emit('changeCategory',{categoryId:category3Id,level:3})
    }
  },
};
</script>

<style lang="less" scoped>
</style>
